Improvement in sash-su stain ers



UNITED STATES vI MENT OFFICE.

GEORGE C. HINMAN, OF NE\V HAVEN, CONNECTICUT.

IMPROVEMENT IN SASH-SUSTAINERS.

Speciiication forming part of Letters Patent No. 140,598, dated March'7, 1854.

To all wil/0m, it may concern.-

Be it known that I, GEORGE C. HINMAN, ot New Haven, in the countyof NewHaven and State of Connecticut, have invented a new and usefulImprovement in lVindow-Fastenings; and I do hereby declare that thefollowing is a full and exact description thereof, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, making a part thereof, in Which- Figure lis a front view of thewindow-frame and sash with my improved fastening attached; Fig. 2, aview of the fastening detached, and Figs. 3 and 4 sections of thefastening.

Similar letters in the sevcraliignres represent the same parts.

The nature of my invention consists in having a metallic rod securedtothe window-sash in such a manner as to form an arch, which by itsconstant tendency to straighten shall press its extremities against thesides of the window-frame, and thus hold the sash in place at whateverheight it is raised, the raising being easily accomplished by the actionof a lever which raises the rod at its center, thus increasing the archor curve and diminishing the pressure ot` its extremities upon the sidesof the window-frame.

To enable others skilled in the art to make and use my invention, I willproceed to describe the same with reference to the drawings.

A A A, Fig. l,represent the window-frame; B B, thesash; C, the metallicrod;D, a bracket or stud; E, a Vertical projection of the bracket; F, ahorizontal projection of the bracket G, a metallic plate or thumb-piece;I I, metallic plates attached to the extremities 0f the rod C.

H H, Fig. l, are staples or loops which serve to keep the rod in place.

Fig. 3 represents the bracket and Fig. a the thumb-piece.

The rod C is attached to thehorizontal part of the sash by the staplesI-I I-I, which are driven into the sash at the distance of aboutone-fourth the width of the sash from its sides.

The bracket D is screwed to the sash equidistant from its sides and alittle above the` staples, and the rod C rests upon its horizontalprojection F and behind its vertical projection E. The rod C, when thussecured,

forms an arch orcurve and its extremities extend to the sides ot thewindow-frame. The two metallic plates or clogs attached to the ends ofthe rod C are fort-hepurpose of causing the rod to slide easier upon thewindowtraine. Theirsliding surfaces are alsoalittle rounded for thatpurpose.

The thumb-piece G, which may be shaped like the thumb-piece of anordinary doorlatch, is placed upon the vertical projection E of thebracket. The horizontal projection of the bracket is shaped similarly tothe thumb-piece, and both are so shaped and situated as to beconveniently grasped by the thumb and finger. The thumb-piece G acts asa lever in raising the rod, and has for its fulcrum a shoulder on theverticalprojection E, which maybe of any form suitable for thethumb-piece.

lVhen it is desirable to raise or lower the sash, the thumb is placedupon thethumbpiece vG so as to press the front end down upon thehorizontal projection F. This elevates the back end, which raises therod G,thereby increasing its arch or curve and diminishing the pressureof the sliding pieces upon its extremities upon the sides of thewindow-frame; and the iinger being placed under the projection F thesash may easily be raised or lowered while the thumb-piece G is helddownA Vhen the sash has reached the desired height and the thumb isremoved, the rod regains its proper curve and holds the sash firmlyinplace by the pressure upon the sides of the window-frame of the clogs orsliding pieces I I upon the extremities of the rod, caused by thetendency of the arched rod to straighten.

To raise or lower window-sashes held by ordinary fastenings both handsare required, one to Operate the fastening and the other to move thesash which is often attended with much inconvenience, cspeciallyinrailroadcars, but to raise or lower sashes held by my improved fasteningonly one hand is required.

Should my improved fastening be broken or otherwise rendered useless, itcan easily be removed and a new one substituted without injury to thesash and without thelabor and expense attendant upon the removing andreplacing of ordinary window-fastenings.

What I claim'as my invention, and desire to secure by Letters Patent,is-

Theabove-deecribed sash-si1staiuer,c0nsist the pressure Slo as t0 allowthe Window to be ing of an arched rod lattached t0 thehorzonlowered, theWhole being arranged and operltal part of the window in such amannerthat ated substantially as above described.

the weight of the sash shall cause the clogged GEO. C. HINMAN. ends ofthe rod to bear equally on both sides, .Vitnesses:

and the above-described lever thumb-piece for ERASTUS SMITH,

increasing the arch of the rod and relieving XV. K. SIMMOND.

